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IrinaK [193]
3 years ago
13

The gravitational force between two asteroids is 1,000,000 n. what will the force be if the distance between the asteroids is do

ubled?
Physics
1 answer:
Alina [70]3 years ago
3 0

To solve this problem, we use the formula:

F = G m1 m2 / r^2

where F is gravitational force, G is constant, m1 and m2 are masses while r is the distance between the two asteroids

Since G m1 m2 is constant, therefore:

F1 r1^2 = F2 r2^2

So if r2 = 2 r1:

(1,000,000 N) (r1^2) = F2 * (2 r1)^2

<span>F2 = 250,000 N</span>

<span>
</span>

<span>It was divided by 4</span>

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How would you describe the difference between momentum and angular momentum?
zheka24 [161]

Answer:

Analogous

Explanation:

Momentum is linear

Angular momentum is spinning

momentum is based on the mass and has no geometric component.

Angular momentum is based on moment of inertia and greatly depends on how far the mass is from the center of spin.

3 0
2 years ago
car 1 is traveling south at 18 m/s and has a full load, giving it a total mass of 14,650 kg. Car 2 is traveling north at 11 m/s
kvasek [131]

Answer:

v_{4}= 80.92[m/s] (Heading south)

Explanation:

In order to calculate this problem, we must use the linear moment conservation principle, which tells us that the linear moment is conserved before and after the collision. In this way, we can propose an equation for the solution of the unknown.

ΣPbefore = ΣPafter

where:

P = linear momentum [kg*m/s]

Let's take the southward movement as negative and the northward movement as positive.

-(m_{1}*v_{1})+(m_{2}*v_{2})=-(m_{1}*v_{3})+(m_{2}*v_{4})

where:

m₁ = mass of car 1 = 14650 [kg]

v₁ = velocity of car 1 = 18 [m/s]

m₂ = mass of car 2 = 3825 [kg]

v₂ = velocity of car 2 = 11 [m/s]

v₃ = velocity of car 1 after the collison = 6 [m/s]

v₄ = velocity of car 2 after the collision [m/s]

-(14650*18)+(3825*11)=(14650*6)-(3825*v_{4})\\v_{4}=80.92[m/s]

4 0
2 years ago
In a white dwarf, electrons are packed in so tightly that they physically cannot get any closer to one another. This provides an
Natalka [10]

Answer:

The white dwarf will start to get darker.

Explanation:

The white dwarf will keep is spherical shape, since electron degeneracy pressure (outward direction) will counteract the force of gravity due to its own mass (inward direction) which lead to hydrostatic equilibrium.

A nuclear reaction occurs when light elements combine into heavier elements (that is know as nucleosynthesis). Exist different ways in which that can happen, but the most common is the Proton-Proton chain. In that fusion reaction, two atoms of Hydrogen combine to form helium, while the fusion takes place, photons are created.

Photons are the elementary particles that constitute light and taking into account that in white dwarfs the production of photons has ceased because there are no nuclear fusions, then, it is clear that the white dwarf will start to get darker as it cools since is emitting into space the photons produced in the past.

4 0
2 years ago
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C
Alex_Xolod [135]

Answer:

26.466cm³/min

Explanation:

Given:

Volume 'V'= 320cm³

P= 95kPa

dP/dt = -11 kPa/minute

pressure P and volume V are related by the equation

PV^{1.4}=C

we need to find dV/dt, so we will differentiate the above equation

V^{1.4} \frac{dP}{dt} + P\frac{d[V^{1.4} ]}{dt}  = \frac{d[C]}{dt}

\frac{dP}{dt} V^{1.4} + P(1.4)V^{0.4} \frac{dV}{dt} =0

lets solve for dV/dt, we will have

\frac{dV}{dt} =\frac{-\frac{dP}{dt} V^{1.4} }{P(1.4)V^{0.4} } \\\frac{dV}{dt} =- \frac{-\frac{dP}{dt} V}{P(1.4)}

\frac{dV}{dt} = -\frac{(-11 ) 320}{95(1.4)}  (plugged in all the values at the instant)

\frac{dV}{dt} = 26.466

Therefore, the volume increasing at the rate of 26.466cm³/min at this instant

6 0
3 years ago
Read 2 more answers
Which layer of the atom sphere contacts the surface of earth
Keith_Richards [23]
The troposphere is the layer of the atmosphere which contacts the surface of the Earth. This layer is <span>0 to 12 km (0 to 7 miles).

Faith xoxo</span>
4 0
3 years ago
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